81610A Keysight Return Loss Module

• Return loss dynamic range > 70 dB

• Return loss uncertainty can be reduced to ±0.25 dB when using broadband sources

• Very wide operating wavelength range: 1250 nm to 1640 nm

• Built-in power monitor

• 8163B mainframe with built-in step-by-step wizard

The Keysight 81610A Return Loss Module is ideal for measuring return loss (RL) and reflection of single-mode fiber components. The module measures the optical power entering and reflecting back from the device under test, and then calculates and displays the return loss. Comprehensive built-in features provide the correct coupling and detector ratios, eliminating the effects of dark currents and residual backscatter in the instrument setup to perform accurate measurements over a wide dynamic range.

The return loss module can be used in any 816x lightwave host and an external fixed wavelength or tunable laser source. The Yestech power sensor in the 8163B mainframe (especially when used in conjunction with the 81610CC calibration reference cable) allows for simultaneous RL and insertion loss measurements, significantly improving performance and ease of use. The 816x plug-and-play driver supports automated use and also supports advanced scanning wavelength RL measurements using the module.

Benefits.

• Wide return loss dynamic range allows you to more accurately measure RL and IL (insertion loss) up to 70 dB, achieving better product specifications.

• One test system can be used to test devices under test in all transmission bands.

• Built-in power monitor for more stable and accurate RL measurements

• Built-in RTL wizard program makes it easier to complete accurate calibration and measurements.

• The parameters are factory calibrated for the user to start return loss measurements immediately.